Le Trésor Perdu d'Aliénor is an educational game available on Android that combines outdoor exploration with augmented reality. Players embark on a quest to uncover a legendary treasure once owned by Queen Eleanor of Aquitaine, specifically a Pomme d’Eden. The game takes participants through six iconic cities in the Vienne department, including Poitiers, Châtellerault, and Montmorillon, allowing them to engage with historical monuments while solving puzzles related to the treasure's mystery.

This free-to-play application offers a unique way to experience local heritage without in-app purchases or advertisements. Players can choose their own routes and complete the courses at their own pace, making it accessible for all ages. To fully enjoy the game, users need an internet connection, geolocation services, and their smartphone camera, as physical presence at the historical sites is required to advance through the different stages.